7-27D2 D
 What is the action that a GMDSS Radio Operator should take when a DSC Distress alert is received requesting J3E?
A. No action is necessary, as the DSC control unit will automatically switch to the SITOR (NBDP) follow-on communications frequency.
B. The Operator should immediately set continuous watch on VHF channel 70.
C. The Operator should immediately set continuous watch on the SITOR (NBDP) frequency that is associated with frequency band on which the Distress alert was received.
D. The Operator should immediately set continuous watch on the radiotelephone frequency that is associated with frequency band on which the Distress alert was received.
